// https://syzkaller.appspot.com/bug?id=101b7e71f53b37caf00bf159bd293d6d6512242a // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_memfd_create #define __NR_memfd_create 279 #endif #ifndef __NR_mmap #define __NR_mmap 222 #endif #ifndef __NR_openat #define __NR_openat 56 #endif static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } //% This code is derived from puff.{c,h}, found in the zlib development. The //% original files come with the following copyright notice: //% Copyright (C) 2002-2013 Mark Adler, all rights reserved //% version 2.3, 21 Jan 2013 //% This software is provided 'as-is', without any express or implied //% warranty. In no event will the author be held liable for any damages //% arising from the use of this software. //% Permission is granted to anyone to use this software for any purpose, //% including commercial applications, and to alter it and redistribute it //% freely, subject to the following restrictions: //% 1. The origin of this software must not be misrepresented; you must not //% claim that you wrote the original software. If you use this software //% in a product, an acknowledgment in the product documentation would be //% appreciated but is not required. //% 2. Altered source versions must be plainly marked as such, and must not be //% misrepresented as being the original software. //% 3. This notice may not be removed or altered from any source distribution. //% Mark Adler madler@alumni.caltech.edu //% BEGIN CODE DERIVED FROM puff.{c,h} #define MAXBITS 15 #define MAXLCODES 286 #define MAXDCODES 30 #define MAXCODES (MAXLCODES + MAXDCODES) #define FIXLCODES 288 struct puff_state { unsigned char* out; unsigned long outlen; unsigned long outcnt; const unsigned char* in; unsigned long inlen; unsigned long incnt; int bitbuf; int bitcnt; jmp_buf env; }; static int puff_bits(struct puff_state* s, int need) { long val = s->bitbuf; while (s->bitcnt < need) { if (s->incnt == s->inlen) longjmp(s->env, 1); val |= (long)(s->in[s->incnt++]) << s->bitcnt; s->bitcnt += 8; } s->bitbuf = (int)(val >> need); s->bitcnt -= need; return (int)(val & ((1L << need) - 1)); } static int puff_stored(struct puff_state* s) { s->bitbuf = 0; s->bitcnt = 0; if (s->incnt + 4 > s->inlen) return 2; unsigned len = s->in[s->incnt++]; len |= s->in[s->incnt++] << 8; if (s->in[s->incnt++] != (~len & 0xff) || s->in[s->incnt++] != ((~len >> 8) & 0xff)) return -2; if (s->incnt + len > s->inlen) return 2; if (s->outcnt + len > s->outlen) return 1; for (; len--; s->outcnt++, s->incnt++) { if (s->in[s->incnt]) s->out[s->outcnt] = s->in[s->incnt]; } return 0; } struct puff_huffman { short* count; short* symbol; }; static int puff_decode(struct puff_state* s, const struct puff_huffman* h) { int first = 0; int index = 0; int bitbuf = s->bitbuf; int left = s->bitcnt; int code = first = index = 0; int len = 1; short* next = h->count + 1; while (1) { while (left--) { code |= bitbuf & 1; bitbuf >>= 1; int count = *next++; if (code - count < first) { s->bitbuf = bitbuf; s->bitcnt = (s->bitcnt - len) & 7; return h->symbol[index + (code - first)]; } index += count; first += count; first <<= 1; code <<= 1; len++; } left = (MAXBITS + 1) - len; if (left == 0) break; if (s->incnt == s->inlen) longjmp(s->env, 1); bitbuf = s->in[s->incnt++]; if (left > 8) left = 8; } return -10; } static int puff_construct(struct puff_huffman* h, const short* length, int n) { int len; for (len = 0; len <= MAXBITS; len++) h->count[len] = 0; int symbol; for (symbol = 0; symbol < n; symbol++) (h->count[length[symbol]])++; if (h->count[0] == n) return 0; int left = 1; for (len = 1; len <= MAXBITS; len++) { left <<= 1; left -= h->count[len]; if (left < 0) return left; } short offs[MAXBITS + 1]; offs[1] = 0; for (len = 1; len < MAXBITS; len++) offs[len + 1] = offs[len] + h->count[len]; for (symbol = 0; symbol < n; symbol++) if (length[symbol] != 0) h->symbol[offs[length[symbol]]++] = symbol; return left; } static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode, const struct puff_huffman* distcode) { static const short lens[29] = {3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258}; static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0}; static const short dists[30] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; static const short dext[30] = {0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; int symbol; do { symbol = puff_decode(s, lencode); if (symbol < 0) return symbol; if (symbol < 256) { if (s->outcnt == s->outlen) return 1; if (symbol) s->out[s->outcnt] = symbol; s->outcnt++; } else if (symbol > 256) { symbol -= 257; if (symbol >= 29) return -10; int len = lens[symbol] + puff_bits(s, lext[symbol]); symbol = puff_decode(s, distcode); if (symbol < 0) return symbol; unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]); if (dist > s->outcnt) return -11; if (s->outcnt + len > s->outlen) return 1; while (len--) { if (dist <= s->outcnt && s->out[s->outcnt - dist]) s->out[s->outcnt] = s->out[s->outcnt - dist]; s->outcnt++; } } } while (symbol != 256); return 0; } static int puff_fixed(struct puff_state* s) { static int virgin = 1; static short lencnt[MAXBITS + 1], lensym[FIXLCODES]; static short distcnt[MAXBITS + 1], distsym[MAXDCODES]; static struct puff_huffman lencode, distcode; if (virgin) { lencode.count = lencnt; lencode.symbol = lensym; distcode.count = distcnt; distcode.symbol = distsym; short lengths[FIXLCODES]; int symbol; for (symbol = 0; symbol < 144; symbol++) lengths[symbol] = 8; for (; symbol < 256; symbol++) lengths[symbol] = 9; for (; symbol < 280; symbol++) lengths[symbol] = 7; for (; symbol < FIXLCODES; symbol++) lengths[symbol] = 8; puff_construct(&lencode, lengths, FIXLCODES); for (symbol = 0; symbol < MAXDCODES; symbol++) lengths[symbol] = 5; puff_construct(&distcode, lengths, MAXDCODES); virgin = 0; } return puff_codes(s, &lencode, &distcode); } static int puff_dynamic(struct puff_state* s) { static const short order[19] = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; int nlen = puff_bits(s, 5) + 257; int ndist = puff_bits(s, 5) + 1; int ncode = puff_bits(s, 4) + 4; if (nlen > MAXLCODES || ndist > MAXDCODES) return -3; short lengths[MAXCODES]; int index; for (index = 0; index < ncode; index++) lengths[order[index]] = puff_bits(s, 3); for (; index < 19; index++) lengths[order[index]] = 0; short lencnt[MAXBITS + 1], lensym[MAXLCODES]; struct puff_huffman lencode = {lencnt, lensym}; int err = puff_construct(&lencode, lengths, 19); if (err != 0) return -4; index = 0; while (index < nlen + ndist) { int symbol; int len; symbol = puff_decode(s, &lencode); if (symbol < 0) return symbol; if (symbol < 16) lengths[index++] = symbol; else { len = 0; if (symbol == 16) { if (index == 0) return -5; len = lengths[index - 1]; symbol = 3 + puff_bits(s, 2); } else if (symbol == 17) symbol = 3 + puff_bits(s, 3); else symbol = 11 + puff_bits(s, 7); if (index + symbol > nlen + ndist) return -6; while (symbol--) lengths[index++] = len; } } if (lengths[256] == 0) return -9; err = puff_construct(&lencode, lengths, nlen); if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1])) return -7; short distcnt[MAXBITS + 1], distsym[MAXDCODES]; struct puff_huffman distcode = {distcnt, distsym}; err = puff_construct(&distcode, lengths + nlen, ndist); if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1])) return -8; return puff_codes(s, &lencode, &distcode); } static int puff(unsigned char* dest, unsigned long* destlen, const unsigned char* source, unsigned long sourcelen) { struct puff_state s = { .out = dest, .outlen = *destlen, .outcnt = 0, .in = source, .inlen = sourcelen, .incnt = 0, .bitbuf = 0, .bitcnt = 0, }; int err; if (setjmp(s.env) != 0) err = 2; else { int last; do { last = puff_bits(&s, 1); int type = puff_bits(&s, 2); err = type == 0 ? puff_stored(&s) : (type == 1 ? puff_fixed(&s) : (type == 2 ? puff_dynamic(&s) : -1)); if (err != 0) break; } while (!last); } *destlen = s.outcnt; return err; } //% END CODE DERIVED FROM puff.{c,h} #define ZLIB_HEADER_WIDTH 2 static int puff_zlib_to_file(const unsigned char* source, unsigned long sourcelen, int dest_fd) { if (sourcelen < ZLIB_HEADER_WIDTH) return 0; source += ZLIB_HEADER_WIDTH; sourcelen -= ZLIB_HEADER_WIDTH; const unsigned long max_destlen = 132 << 20; void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0); if (ret == MAP_FAILED) return -1; unsigned char* dest = (unsigned char*)ret; unsigned long destlen = max_destlen; int err = puff(dest, &destlen, source, sourcelen); if (err) { munmap(dest, max_destlen); errno = -err; return -1; } if (write(dest_fd, dest, destlen) != (ssize_t)destlen) { munmap(dest, max_destlen); return -1; } return munmap(dest, max_destlen); } static int setup_loop_device(unsigned char* data, unsigned long size, const char* loopname, int* loopfd_p) { int err = 0, loopfd = -1; int memfd = syscall(__NR_memfd_create, "syzkaller", 0); if (memfd == -1) { err = errno; goto error; } if (puff_zlib_to_file(data, size, memfd)) { err = errno; goto error_close_memfd; } loopfd = open(loopname, O_RDWR); if (loopfd == -1) { err = errno; goto error_close_memfd; } if (ioctl(loopfd, LOOP_SET_FD, memfd)) { if (errno != EBUSY) { err = errno; goto error_close_loop; } ioctl(loopfd, LOOP_CLR_FD, 0); usleep(1000); if (ioctl(loopfd, LOOP_SET_FD, memfd)) { err = errno; goto error_close_loop; } } close(memfd); *loopfd_p = loopfd; return 0; error_close_loop: close(loopfd); error_close_memfd: close(memfd); error: errno = err; return -1; } static void reset_loop_device(const char* loopname) { int loopfd = open(loopname, O_RDWR); if (loopfd == -1) { return; } if (ioctl(loopfd, LOOP_CLR_FD, 0)) { } close(loopfd); } static long syz_mount_image(volatile long fsarg, volatile long dir, volatile long flags, volatile long optsarg, volatile long change_dir, volatile unsigned long size, volatile long image) { unsigned char* data = (unsigned char*)image; int res = -1, err = 0, need_loop_device = !!size; char* mount_opts = (char*)optsarg; char* target = (char*)dir; char* fs = (char*)fsarg; char* source = NULL; char loopname[64]; if (need_loop_device) { int loopfd; memset(loopname, 0, sizeof(loopname)); snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid); if (setup_loop_device(data, size, loopname, &loopfd) == -1) return -1; close(loopfd); source = loopname; } mkdir(target, 0777); char opts[256]; memset(opts, 0, sizeof(opts)); if (strlen(mount_opts) > (sizeof(opts) - 32)) { } strncpy(opts, mount_opts, sizeof(opts) - 32); if (strcmp(fs, "iso9660") == 0) { flags |= MS_RDONLY; } else if (strncmp(fs, "ext", 3) == 0) { bool has_remount_ro = false; char* remount_ro_start = strstr(opts, "errors=remount-ro"); if (remount_ro_start != NULL) { char after = *(remount_ro_start + strlen("errors=remount-ro")); char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1); has_remount_ro = ((before == '\0' || before == ',') && (after == '\0' || after == ',')); } if (strstr(opts, "errors=panic") || !has_remount_ro) strcat(opts, ",errors=continue"); } else if (strcmp(fs, "xfs") == 0) { strcat(opts, ",nouuid"); } res = mount(source, target, fs, flags, opts); if (res == -1) { err = errno; goto error_clear_loop; } res = open(target, O_RDONLY | O_DIRECTORY); if (res == -1) { err = errno; goto error_clear_loop; } if (change_dir) { res = chdir(target); if (res == -1) { err = errno; } } error_clear_loop: if (need_loop_device) reset_loop_device(loopname); errno = err; return res; } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void reset_loop() { char buf[64]; snprintf(buf, sizeof(buf), "/dev/loop%llu", procid); int loopfd = open(buf, O_RDWR); if (loopfd != -1) { ioctl(loopfd, LOOP_CLR_FD, 0); close(loopfd); } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } } } void execute_one(void) { syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0ul, /*flags=O_NOCTTY|O_LARGEFILE|O_APPEND*/ 0x20500ul, /*mode=*/0ul); memcpy((void*)0x20000000, "ntfs\000", 5); memcpy((void*)0x2001ecc0, "./file0\000", 8); *(uint8_t*)0x20000080 = 0; memcpy( (void*)0x200023c0, "\x78\x9c\xec\xdd\x4b\x6c\x1d\xd7\x61\xc6\xf1\x6f\xee\x83\x0f\x49\xb6\x69" "\x99\x4d\xe9\x47\xaa\x91\x7c\xeb\xaa\x89\x23\xd3\x92\x65\xab\xad\x1b\x8b" "\x22\x29\x8b\x36\x45\xd2\x14\x65\xb0\x45\x62\x8b\x12\xaf\x2c\xd6\x14\x49" "\x93\xd7\xa8\x64\x18\xc9\xcd\x2e\x81\xbb\x50\x76\x45\x37\xf1\xb2\x05\xba" "\x30\x90\x2e\x02\x34\x68\x9d\x5d\x80\xc0\x68\x36\x2d\x8c\xa2\x0b\x2f\x0a" "\xa4\x80\x37\x46\x36\x35\x8a\xc0\x2c\xe6\xcc\x99\xe1\x3c\xee\x25\x39\x14" "\x9f\x33\xff\x1f\x20\x9e\xb9\xc3\xb9\xe7\x9c\x79\x7c\xf3\xe2\x9d\xab\xcf" "\x27\xef\x8d\x4d\x5d\xbc\xe2\xba\xae\xab\x52\x49\xbe\x2f\x15\xd3\x54\x53" 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"\xfd\x0f\x53\xe3\x5b\xcd\x1e\x00\x00\x00\x00\x00\x68\x29\x7a\xad\x1e\x0e" "\x73\x25\x0d\xe4\xce\xc8\xd8\xd0\xf4\x49\x75\xa7\xc6\x9f\x94\xf4\xb3\x0e" "\xe9\x7f\x1e\xf2\x5f\xf7\xe9\xd3\x96\x7b\x80\x8a\xfd\x79\x4b\x93\x66\xa8" "\x6a\x7f\x36\xa7\xfa\x17\x3e\xf8\xea\x53\x27\x51\x56\xec\xdb\x1c\x1d\xb1" "\x43\x87\xfc\xa2\xc3\xbe\xec\x2a\xd7\x34\xa0\x86\x1a\x5a\xd6\x90\xea\xba" "\x69\x27\xf7\xef\x47\x76\x6d\xb6\x9d\xb0\x4c\xf6\x37\xda\xce\x05\xcd\x68" "\x56\x83\x9a\xd7\xbb\x5a\x31\x63\x3b\xed\xef\x3b\x74\x4d\x13\xd9\xda\x59" "\x9b\xb3\x58\x3b\x9d\xa6\x9d\x39\x35\x74\x5b\x33\x5a\x52\xa7\x6d\xe7\x9a" "\x46\x37\xa8\x5f\xf1\xfa\x5d\x5b\xa1\x1b\xaf\xbf\x6a\xea\x5f\xd4\xa2\x1a" "\x9a\xd3\xbc\xfc\xfb\xa6\x87\x37\xd9\xff\x3e\xad\xb3\x9c\x7a\xd6\x5e\xdd" "\x51\x43\x75\x2d\x68\x56\xfe\x6d\xd6\xd2\x16\xd6\x43\x25\xb6\xc5\x44\xd7" "\xc3\xa8\x16\xf5\x96\x2e\x9a\xfe\xd7\xa3\x0b\x51\x8e\xae\xe9\x95\x6c\xed" "\xcc\xdb\xb7\xce\xc7\x97\x53\xa5\x5c\xd3\x65\x5d\xd4\x54\x6c\x35\x39\xd9" "\xe7\x23\x58\x2a\x3d\xe9\xed\xc9\xaf\xff\xb2\xe6\xb4\xac\x65\xff\x3e\xba" "\x4d\x56\x77\xf6\xed\x29\xbd\x3e\xdc\x60\x7b\xba\xa2\xba\x6e\xe8\x5d\x2d" "\xab\x6e\xe3\x73\x68\x0b\xf5\x97\x4c\xaa\x65\xd7\x68\x74\x7b\xbd\xaa\x25" "\x0d\x6a\x46\x2b\xaa\xab\x6c\xc6\x96\xb7\xa3\xff\x61\xfd\xaf\x6b\xd1\x64" "\xee\xb6\xea\x61\x7d\xd3\x1a\x6a\x59\xff\x8d\x37\xce\xbe\x13\x2d\xdb\xd5" "\xff\x94\x5d\x23\x4e\xf9\x94\x79\x3d\x1c\xae\xdf\xa9\x58\xbd\xbf\xfd\xae" "\x5f\xcf\x8f\xaf\xc7\xcb\x60\xfc\xad\x44\xcd\x41\xec\xba\x75\xd3\x6e\x9f" "\xa7\x74\xc3\xf4\x7f\xd6\x8c\x3f\x6f\xdb\x49\xe6\xf9\xdb\x4f\xfa\xf5\x9d" "\x78\x21\x5e\x06\xe3\x93\xfd\x77\x6d\xff\xab\x61\x3b\xfd\x66\xfc\x60\x9b" "\xfa\xa7\x5f\xf4\xeb\xf9\xf9\x79\xbf\xfc\xc5\xb0\x5f\x06\xe3\x83\xcd\xf4" "\x50\x62\x3e\xd6\xea\x7f\xd6\xac\xff\xa1\x36\xf5\x7f\xe7\x55\xbf\x9e\xdf" "\x5c\xf1\xcb\x85\x69\xbf\x0c\xc6\xab\xe6\xd7\x77\xf2\xc9\x76\xf5\x9f\x36" "\xaf\x87\xba\x82\x39\xcc\x5c\xff\xea\xf7\xd7\xad\xff\x4c\x6c\xf9\xf5\x84" "\x5b\x32\x36\xaf\x6f\xaf\x3b\x80\x3d\xc5\xfa\x2f\x90\xeb\xe9\x51\xac\xff" "\x62\x63\xfd\x17\x5b\x9f\xbc\xab\x89\x29\x0d\x68\x4c\x43\x1a\xd0\xa4\x86" "\xf4\xa6\x46\x34\xa6\x8b\x1a\xd7\xa4\x2e\x6b\x40\x53\x1a\xd1\xb8\xc6\x76" "\xa8\x07\x91\x8b\x4c\x73\x2e\xdd\x6f\x87\x2f\xd9\xb2\x66\x7a\x30\xa5\x49" "\x8d\xe8\x82\xae\x6a\x4a\xc3\x7a\x53\xa3\x1a\x31\xfd\xde\x79\x6e\x64\xb8" "\x19\x19\x5e\xb5\x6a\xba\xa8\x11\x8d\x9a\x5e\x8d\x69\x40\x97\xed\x95\xc7" "\x6e\xe9\x8f\x0c\x5f\xf0\xce\xb7\x83\x61\x7b\x32\x5c\xd3\xb8\x2e\xe8\x15" "\x0d\x6b\x50\x53\x66\xdd\x0e\xed\x6a\xff\xce\xb7\x19\x0e\x2e\xf1\xbd\xed" "\xcf\xeb\xdb\x55\xb3\x86\xa7\xf4\x17\x7a\x53\x43\x1a\xd6\x15\x0d\x9a\x31" "\x13\x9a\x32\x5b\xe2\x4e\x99\x88\x0c\xb7\x5e\xbf\xaf\x6b\x5c\xa3\xba\x6a" "\xd6\xec\xee\xae\x63\x6f\x79\x5d\x4b\xbc\x0e\xaf\x71\xc2\xe5\x17\xef\xdf" "\x6e\x66\xd7\xb3\x94\xe8\x5f\x70\x5b\x2f\x28\x6b\x66\xbf\xe2\xed\x61\xf6" "\x46\xb3\xcd\xf8\xb5\xf5\x3b\x62\xf6\x7d\xc3\x9a\xd6\x9b\x9a\xd4\xb8\xc6" "\x77\x65\xbf\x12\xb8\x17\x19\x3e\xbf\x61\xff\x06\x34\xaa\x51\x8d\x6b\x70" "\x57\xd6\xad\xe7\xc3\xc8\x70\xeb\x7c\x5c\x30\xb9\xf5\xb6\xb6\x89\x1d\xee" "\x4b\x2b\x1f\x6d\xd8\xbf\x49\x0d\x6b\xc2\x1c\xdb\xae\x98\x84\x4c\x68\xdc" "\x2c\xd3\xdd\x59\xcb\x1f\xb7\xe9\x5f\xb0\xb2\x6b\x1a\xd6\xc0\x1e\xe4\x36" "\xf0\xeb\x44\x97\x82\xdb\x35\x41\xe9\xf7\x6f\xef\x7c\xd6\xf6\x37\xfe\x0e" "\xb0\x66\xf2\xf0\xb2\x5e\xd6\xb0\x39\x77\xb9\x6a\x96\xdd\x68\x78\x2c\xb9" "\x62\xce\x1d\x86\xcd\x5e\x7b\x47\x44\xee\xe4\x35\xdb\xfd\x02\xd8\xa7\x56" "\x9d\x60\x4f\xb9\xda\xd9\x72\x82\xe6\x6a\x56\xc7\x32\x34\xbf\x71\xed\x2f" "\x6d\xdb\xac\xfa\xba\xe2\xed\x6f\x73\xed\xc0\x81\xf2\xc5\xd1\xf2\x97\xd1" "\x43\xd5\xfb\xf6\x99\x20\xef\xfa\x7b\xda\x8c\xf1\xff\x5e\x5b\xd2\x73\xf6" "\xda\xa3\x57\x3f\xd2\xd1\xf8\x33\x3e\xea\xf3\xc7\x25\x9e\x07\xda\xe8\xb5" "\xe7\xb5\xda\x4f\x4d\x5d\x41\x10\xdf\x77\x93\xed\x07\xcf\x24\xad\xb5\xff" "\x13\x27\xdd\xbe\xb7\xf7\xda\x4a\xfb\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x36\xf6" "\xff\x01\x00\x00\xff\xff\x4c\x97\x3a\x1e", 4474); syz_mount_image(/*fs=*/0x20000000, /*dir=*/0x2001ecc0, /*flags=MS_SYNCHRONOUS|MS_MANDLOCK*/ 0x50, /*opts=*/0x20000080, /*chdir=*/0, /*size=*/0x117a, /*img=*/0x200023c0); } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); loop(); return 0; }